AKOYU WiFi Smart Door and Window Alarm Sensor with APP Alert, Wireless DIY Smart Home Security System, 8 Pieces-Kit (Alarm Siren, Door Window Sensor, Remote Control, Caregiver Pager) 2.4GHz WiFi Only - W7-Series 1

• 🔔Wireless Smart Security System - A smart way to protect your house with AKOYU Smart Home Security System, remotely control the home alarm system wireless anywhere, anytime via smartphone. 9-piece kit includes the 1 alarm siren station, 5 windows & door sensors, 1 remote controls and 1 caregiver pager. No contracts and No subscription fee, work 2.4GHz Wi-Fi only ✅Expandable Safety System - With the help of smart ecosystem, you can add extra infrared detectors, door chime/alarm, smoke detectors, gas detectors, emergency buttons and other accessories by wireless. It supports expansion of up to 24 sensors and 4 remote controls/keypads, which can be added to the WiFi alarm station. Emergency button ideal for elderly, seniors, patients, disabled 🔔Volume Control & Memory Function - This WiFi door alarm system 4 adjustable volume levels （Included Mute） ranging from 0 to 120 dB, neither disturb your sleep nor hear the clear alarm when you are hosting a party. Wireless DIY smart home security system will remember your settings even if power outage. It can remember the last melody and volume after power off without resetting to the previous settings ✅Easy To Install - All accessories were paired. Connect base station to Wi-Fi(2.4GHz Network) Note the installation gap between sensor and magnetic strip is less than 0.4in. Furthermore to know the alert location when door window sensor alarms. You can share the smart alarm system with your family by APP to allow them to get the notification on their cell phone 🔔Low Battery Warning - The wireless door alarm sensor works with 2*AAA battery (batteries are not included), The Alarm Siren's warning lights will send out alerts and push the low batteries notifications to mobile phones. We recommend you ALWAYS CONNECT the alarm station to AC adapter. Please contact our after-sale service if you have any issues ✅No contracts and No Subscription Fee - Free notification messages, no need to pay any subscription service fees, 24-hour comprehensive protection of your family security. 2-year warranty and 24-hour online after-sales